Dalil

Quran Al-Mujadila 58:2

ٱلَّذِينَ يُظَٰهِرُونَ مِنكُم مِّن نِّسَآئِهِم مَّا هُنَّ أُمَّهَٰتِهِمۡۖ إِنۡ أُمَّهَٰتُهُمۡ إِلَّا ٱلَّٰٓـِٔي وَلَدۡنَهُمۡۚ وَإِنَّهُمۡ لَيَقُولُونَ مُنكَرٗا مِّنَ ٱلۡقَوۡلِ وَزُورٗاۚ وَإِنَّ ٱللَّهَ لَعَفُوٌّ غَفُورٞ

Translation

Those who pronounce ẓihār among you [to separate] from their wives - they are not [consequently] their mothers. Their mothers are none but those who gave birth to them. And indeed, they are saying an objectionable statement and a falsehood. But indeed, Allāh is Pardoning and Forgiving.